forked from lix-project/lix
749dd97a54
useful for fields like meta.maintainers, meta.priority (which can be a proper integer now) and even meta.license (if there are multiple licenses).
78 lines
1.5 KiB
C++
78 lines
1.5 KiB
C++
#ifndef __GET_DRVS_H
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#define __GET_DRVS_H
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#include <string>
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#include <map>
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#include <boost/shared_ptr.hpp>
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#include "eval.hh"
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namespace nix {
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struct MetaValue
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{
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enum { tpNone, tpString, tpStrings, tpInt } type;
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string stringValue;
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Strings stringValues;
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int intValue;
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};
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typedef std::map<string, MetaValue> MetaInfo;
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struct DrvInfo
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{
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private:
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string drvPath;
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string outPath;
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public:
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string name;
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string attrPath; /* path towards the derivation */
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string system;
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/* !!! these should really be hidden, and setMetaInfo() should
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make a copy since the ATermMap can be shared between multiple
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DrvInfos. */
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boost::shared_ptr<ATermMap> attrs;
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string queryDrvPath(EvalState & state) const;
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string queryOutPath(EvalState & state) const;
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MetaInfo queryMetaInfo(EvalState & state) const;
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MetaValue queryMetaInfo(EvalState & state, const string & name) const;
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void setDrvPath(const string & s)
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{
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drvPath = s;
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}
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void setOutPath(const string & s)
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{
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outPath = s;
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}
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void setMetaInfo(const MetaInfo & meta);
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};
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typedef list<DrvInfo> DrvInfos;
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/* Evaluate expression `e'. If it evaluates to a derivation, store
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information about the derivation in `drv' and return true.
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Otherwise, return false. */
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bool getDerivation(EvalState & state, Expr e, DrvInfo & drv);
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void getDerivations(EvalState & state, Expr e, const string & pathPrefix,
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const ATermMap & autoArgs, DrvInfos & drvs);
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}
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#endif /* !__GET_DRVS_H */
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